Note: The hydrologic data on this website are provisional records collected by an automated process and are subject to change. At the conclusion of each calendar year, these data are reviewed and revised as needed, following standards for quality assurance, to create final data records published in the Lower Colorado River Stream Flow Reports and the Colorado River Accounting and Water Use Reports.

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REPORT LAST UPDATED ON: 10/08/2026 05:12 PM

SITE NAME: COLORADO RIVER AT PARKER GAGE
PARAMETER: AVERAGE FLOW
UNITS: CFS



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Date & Time Value
10/2/2026 12:00:00 AM7,681
10/2/2026 1:00:00 AM7,298
10/2/2026 2:00:00 AM5,421
10/2/2026 3:00:00 AM4,025
10/2/2026 4:00:00 AM3,534
10/2/2026 5:00:00 AM3,413
10/2/2026 6:00:00 AM3,659
10/2/2026 7:00:00 AM5,666
10/2/2026 8:00:00 AM6,771
10/2/2026 9:00:00 AM6,919
10/2/2026 10:00:00 AM5,897
10/2/2026 11:00:00 AM5,131
10/2/2026 12:00:00 PM4,790
10/2/2026 1:00:00 PM4,664
10/2/2026 2:00:00 PM4,674
10/2/2026 3:00:00 PM4,754
10/2/2026 4:00:00 PM4,732
10/2/2026 5:00:00 PM4,705
10/2/2026 6:00:00 PM4,901
10/2/2026 7:00:00 PM6,306
10/2/2026 8:00:00 PM7,039
10/2/2026 9:00:00 PM7,349
10/2/2026 10:00:00 PM7,280
10/2/2026 11:00:00 PM6,101
10/3/2026 12:00:00 AM4,575
10/3/2026 1:00:00 AM3,734
10/3/2026 2:00:00 AM3,492
10/3/2026 3:00:00 AM3,413
10/3/2026 4:00:00 AM3,445
10/3/2026 5:00:00 AM3,460
10/3/2026 6:00:00 AM3,432
10/3/2026 7:00:00 AM3,352
10/3/2026 8:00:00 AM3,328
10/3/2026 9:00:00 AM3,506
10/3/2026 10:00:00 AM4,290
10/3/2026 11:00:00 AM4,819
10/3/2026 12:00:00 PM4,890
10/3/2026 1:00:00 PM4,897
10/3/2026 2:00:00 PM4,856
10/3/2026 3:00:00 PM4,969
10/3/2026 4:00:00 PM5,014
10/3/2026 5:00:00 PM4,995
10/3/2026 6:00:00 PM5,135
10/3/2026 7:00:00 PM6,381
10/3/2026 8:00:00 PM7,147
10/3/2026 9:00:00 PM7,465
10/3/2026 10:00:00 PM7,603
10/3/2026 11:00:00 PM7,664
10/4/2026 12:00:00 AM7,641
10/4/2026 1:00:00 AM7,264
10/4/2026 2:00:00 AM5,371
10/4/2026 3:00:00 AM4,033
10/4/2026 4:00:00 AM3,514
10/4/2026 5:00:00 AM3,635
10/4/2026 6:00:00 AM5,430
10/4/2026 7:00:00 AM5,547
10/4/2026 8:00:00 AM5,280
10/4/2026 9:00:00 AM5,196
10/4/2026 10:00:00 AM5,315
10/4/2026 11:00:00 AM5,215
10/4/2026 12:00:00 PM5,103
10/4/2026 1:00:00 PM5,095
10/4/2026 2:00:00 PM5,132
10/4/2026 3:00:00 PM5,109
10/4/2026 4:00:00 PM5,053
10/4/2026 5:00:00 PM5,068
10/4/2026 6:00:00 PM5,280
10/4/2026 7:00:00 PM6,323
10/4/2026 8:00:00 PM7,110
10/4/2026 9:00:00 PM7,432
10/4/2026 10:00:00 PM7,570
10/4/2026 11:00:00 PM7,389
10/5/2026 12:00:00 AM6,163
10/5/2026 1:00:00 AM4,823
10/5/2026 2:00:00 AM5,889
10/5/2026 3:00:00 AM8,789
10/5/2026 4:00:00 AM10,727
10/5/2026 5:00:00 AM11,716
10/5/2026 6:00:00 AM11,944
10/5/2026 7:00:00 AM11,052
10/5/2026 8:00:00 AM10,179
10/5/2026 9:00:00 AM8,880
10/5/2026 10:00:00 AM6,784
10/5/2026 11:00:00 AM4,634
10/5/2026 12:00:00 PM2,321
10/5/2026 1:00:00 PM1224.4
10/5/2026 2:00:00 PM1000.5
10/5/2026 3:00:00 PM1144.4
10/5/2026 4:00:00 PM1203.9
10/5/2026 5:00:00 PM1261.4
10/5/2026 6:00:00 PM2,947
10/5/2026 7:00:00 PM5,738
10/5/2026 8:00:00 PM7,088
10/5/2026 9:00:00 PM7,513
10/5/2026 10:00:00 PM7,654
10/5/2026 11:00:00 PM7,737
10/6/2026 12:00:00 AM7,782
10/6/2026 1:00:00 AM7,989
10/6/2026 2:00:00 AM9,702
10/6/2026 3:00:00 AM11,211
10/6/2026 4:00:00 AM11,948
10/6/2026 5:00:00 AM12,302
10/6/2026 6:00:00 AM12,224
10/6/2026 7:00:00 AM10,962
10/6/2026 8:00:00 AM9,310
10/6/2026 9:00:00 AM8,071
10/6/2026 10:00:00 AM6,197
10/6/2026 11:00:00 AM3,195
10/6/2026 12:00:00 PM1,550
10/6/2026 1:00:00 PM1003.2
10/6/2026 2:00:00 PM999.9
10/6/2026 3:00:00 PM1091.0
10/6/2026 4:00:00 PM1158.8
10/6/2026 5:00:00 PM1242.2
10/6/2026 6:00:00 PM2,891
10/6/2026 7:00:00 PM5,637
10/6/2026 8:00:00 PM6,948
10/6/2026 9:00:00 PM7,358
10/6/2026 10:00:00 PM7,466
10/6/2026 11:00:00 PM7,337
10/7/2026 12:00:00 AM6,253
10/7/2026 1:00:00 AM5,550
10/7/2026 2:00:00 AM6,874
10/7/2026 3:00:00 AM8,190
10/7/2026 4:00:00 AM10,021
10/7/2026 5:00:00 AM11,268
10/7/2026 6:00:00 AM11,677
10/7/2026 7:00:00 AM10,760
10/7/2026 8:00:00 AM9,267
10/7/2026 9:00:00 AM7,923
10/7/2026 10:00:00 AM5,415
10/7/2026 11:00:00 AM2,624
10/7/2026 12:00:00 PM1317.2
10/7/2026 1:00:00 PM1031.1
10/7/2026 2:00:00 PM1200.9
10/7/2026 3:00:00 PM1272.7
10/7/2026 4:00:00 PM1159.4
10/7/2026 5:00:00 PM1166.1
10/7/2026 6:00:00 PM2,925
10/7/2026 7:00:00 PM5,778
10/7/2026 8:00:00 PM6,996
10/7/2026 9:00:00 PM7,411
10/7/2026 10:00:00 PM7,590
10/7/2026 11:00:00 PM7,623
10/8/2026 12:00:00 AM7,612

Please contact the Water Operations Control Center via e-mail at bcoowaterops@usbr.gov or via phone at (702) 293-8373 for additional questions or information.